Codeigniter 会话值访问答案

【问题标题】：Codeigniter session value accessCodeigniter 会话值访问
【发布时间】：2016-05-23 09:51:24
【问题描述】：

我最近购买了项目管理系统，我试图添加新表单，但我的表单无法正常工作。我认为我的问题是模型，我无法将会话值（project_code）提交到数据库以确保特定条目对特定项目可见。我购买的系统是 ekushey，可在 codecanyon 上找到。

型号

function client_invoicing_add($project_code = '') {
    //$data['project_code'] =   $project_code;
    //$data['project_code'] =   $this->session->userdata('project_code');
    $data['client_payment_milestone']       =   $this->input->post('client_payment_milestone');
    $data['client_payment_deliverables']    =   $this->input->post('client_payment_deliverables');
    $data['client_payment_date']            =   $this->input->post('client_payment_date');
    $data['client_payment_amount']          =   $this->input->post('client_payment_amount');
    $data['timestamp']    = strtotime($this->input->post('timestamp'));
    $data['client_id']    = $this->session->userdata('login_user_id');
    $data['project_code'] = $this->db->get_where('project' , array('project_id' => $project_id))->row()->project_code;
    //$data['project_id']   = $this->db->get_where('project' , array('project_code' => $project_code))->row()->project_id;
    $this->db->insert('client_invoicing' , $data);
}

控制器

// Client invoicing
function client_invoicing($param1 = '' , $param2 = '' , $param3 = '') {
    if ($this->session->userdata('client_login') != 1) {
        $this->session->set_userdata('last_page', current_url());
        redirect(base_url(), 'refresh');
    }

    if ($param1 == 'add') {
        $this->crud_model->client_invoicing_add($param2); // param2 = project code
    }

    if ($param1 == 'edit') {
        $this->crud_model->client_invoicing_edit($param2); // param2 = client payment id
    }

    if ($param1 == 'delete') {
        $this->crud_model->client_invoicing_delete($param2); // param2 = client payment id
    }
}

【问题讨论】：

标签： mysql ajax codeigniter session-variables

【解决方案1】：

您可以使用var_dump($this->session->all_userdata()); 打印所有会话对象。从他们那里你可以检查会话是否已经设置。

【讨论】：

【解决方案2】：

    Session array is available through the $_SESSION global:
        $name = $_SESSION['name'];
        // or:
        $name = $this->session->name
        // or:
        $name = $this->session->userdata('name');

    If you want to retrieve all of the existing userdata
       $_SESSION
       // or:
       $this->session->userdata();

注意：如果您正在尝试的项目，userdata() 方法返回 NULL 访问不存在。

【讨论】：